Safety fountain brush



y 1,476,610 W. C. HERBERT ET AL v 'r SAFETY FOUNTAIN BRUSH Filed Feb. 19'. 1921 Dec. 4, 1923.

Patented Dec. 4, 1923.

narran STATES PATENT OFFICE.

wrttrniu CITAS. HERBERT AND EEANCIS X. SMITH, or BROOKLYN, NEW YORK.

, SAFETY FOUNTAIN BRUSH.

Application le'd February 19, 1921. Serial N'o. 446,313.

T 0 all whom t may concern Be it known that we, WILLIAM CHARLES.

HERBERT and FRANCIS X. SMITH, citizens of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented new and useful Improvements in Safety Fountain Brushes, of which the following is a specification.

This invention relates to safety fountain brushes for use by printers, drycleaners, tanners and others who apply explosive or inflammable liquids by meansl of a brush.'

One of the principal objects is to provide a device of this nature in which the tank or reservoir may be detachably mounted on the brush proper andV form a handle for manipulation of the brush and so that the weight of the tank and contained liquid may be utilized to press the brush into contact with the article operated upon thereby reducing the efforts of the operator to a minimum.

Another object is .to provide novel means of securing the brush and tank together. Another object is to provide a novel form of brush.

Another object is to provide a closure for the tank which shall be partly constructed of fuse metal so as to melt in case of fire thereby permitting the liquid to be burned and avoiding an explosion which would spread the flaming liquid.

Another object is vto provide improved valve and valve operating mechanisms.

Another obj ect is to construct a deviceJ of this nature which shall be simple of construction, cheap to manufacture, and highly efficient for the purpose for which it is designed.

With these and other objects in view which will be more apparent as the specification proceeds, the invention resides in certain novel features of construction and combination and arrangement of parts, the essential features of which are yhereinafter .fully described, are particularly pointed out in the appended claim, and are illustrated in the accompanying drawing, inl

which Figure 1 is a longitudinal vertical sectional view of the device.

Figure 2 is a transverse sectional view on line 2-2 of Figure 1.

Figure 3 is a fragmentary view of a modilied form of valve mechanism.

Like characters of reference' refer tolike` partsV in all views.

Referring to the drawing in detail, 10 represents thecylindrical casing of the tank portion which is provided ywith ends 11 which are formed with flanges 12 to embrace tending portions 13. Each portion 13 is provided with inwardly bent side flanges upper face to conformy tothe configurationr of the can. The curved formof the top of member 16 and the straight flangeslft prevent sliding of the brush about the surface of the can and screws 17 lock the -can andl brush together. At equal distancesv from each end of the member 16 a well-13v is formed in the upper surface of the'member16 and is provided with a ductk 19 for vpermitting liquid to ilow from the well 18 to the bristles. A slot` or way 15is formed in the upper surface of member 16 to connect the wells 18, and isi-cut down 'flush with the bottoms of said wells.

The botto-m of the can or tank is extruded as at 2O and formed with Screwthreads to receive the lower end ofa sleeve member'21 which is reduced so as to form a Shoulder to clamp a washer or'gasket into tight contactwith the interior surface of the can. This sleeve is provided at the line of the bottom of the can withan annular shoulder 24, lthe lower surface of which is formed with a valve seat 25. valve rod 27 passes throughthe sleeve 20 and is provided at its lower end with a con- Vical lvalve 28 Vof leather or like material the 'member 10 and with downwardly eX- l ble means. An aperture 32 is formed in the member 21 at aslight distance from the bottom of the can so as to permit the egress ol" the liquid?, the lower portion of the can forming a trap to catch any sediment.

The extrusion 20 extends into the well 18 buty not to the bottomthereof, said well thus forming a. receptacle into which a portion of the liquid may be released andgradually ted out through the small duct 19. Also the liquid will flow from ythe forward well through the way 15 tothe rear well and will pass out thro-ugh the vrear duct 19 and through the-bristle apertures opening into` way 15.

A threaded top of the can by means `eta fusible solder 35,and into this a capy or closure member is adapted to be screwed. rlhis cap comprises a bushing 3d preferably oi brass andprovided with a sleeve 36. The lower` end of s sleeve 36 is reduced and screw-threaded and 'on this is secured a member 37 forming a stuiing box in which a packing 38 of waste and graphite or other suitable material is confined so asto make a liquid tight packing around a push rod 39 which extends through the sleeve 36 and is provided at its upper end with a. linger piece 40. A disk 41 is secured to the lower end of rod 39 and is provided with a conical lo-wer surface for preventing therod 27 from slipping away when the p rod 39 is pressed down.

lA duct l2 passes through the side of finger piece and down rod 39 to a point normally sealed by the member 37.

In operation, Vthe tank is filled with the liquid to be used and the closure 3fl-35is screwed tightly to place. The operator then grasps `the cylindrical tank as a handle and Y presses down the member 40 with one oi his fingers. Y brings Ythe lower mouth oil duct 4t2 below Thisl opens the valve-'and also the nut 37 so as to permit entrance of air to allow a Yfree flow of liquid from the valve. As the liquid ilowsfout, the brush is moved back and tort-h thereby` distributing the liquid to the material to be cleaned and to .the variousbristles. lhen a sufici ent quantityhas been thus fed out, the inger piece is released vand the spring automatically closes the .valve and moves the air-duct again to sea-led position. The wells and connecting way will still hold a certain amount of liquid which will be gradually fed down to the bristles.V

Should -a fire occur the closed valve will Y prevent immediate ignition ot the contents of the tank, but if the can is exposed to the `tire for `a long enough time so that there is collar 33 is secured in theV operator so that he will not be injuredv by striking against the type or other devices being cleaned. Furthermore, the weight of the tank Vand contents greatly lessens the amount of pressure lrequired to be exerted by the operator. The use of this device also eliminates many operations necessary where an ordinary brush is used, as tor instance the opening of the container, picking it up and pouring contents on the brush, reclosing the container, etc., and also avoids theloss of material usual. in such cases.

` Y Another fea-ture is that the brush maybe readily removed when worn out and re# placed by a new one, and when the bristles are worn at one end, the brush maybe reversed thus greatly increasing its lite.

ln' the lform of valve mechanism shown in Figure 3, the extrusion 20 is not made,

the can being merely cut away at this point.V

The lower end of member 21 is thrust through this aperture, and a nut Q3 screwed onto the outer end with. a. gasket or washer interposed between the nut 23 and .the outer surface? of the can. All yother features are the same. n n* f p lVliile we have described what is deemed to be the most desirable embodiments of our invention, it is obvious that many of the details may be varied without inv any way departing from the spirit of theV invention,

and we therefore do not limit ourselves to the exact details of construction herein set forth nor to anything less than the whole of the invention limited only by the appended claim. Y

jlVhat is claimed as new is Q A fountain brush comprising acylindrical tank, a bristle carrying back having its upper face rounded to conform with the curvature of said tank, the closure ends of said tank being extended downwardly at theends of the brush back for rigidlyconnecting the brush back and the tank, the -roiuided face being provided with spaced recesses in colm- Vmunication with eachother through a groove provided in said back, and ducts leading from said recesses and grooves to the bristles.

In testimony whereof we have atlixed our signatures. l Y

VVILLAh/l CHAS. HERBERT. FRANCIS X. SMlTH. 

